body{
	background-color:#ececec;
	padding-bottom: 35px;
}
html{
	height: 100vh;
}
h4{
	margin: 0;
}
h4>span{
	margin-right:10px;
}




	#d2{
		background-color: #f8f8f8;
	}
	.nav_body2{
		height: 180px;
			display: flex;
			flex-wrap: wrap;
			padding: 5px;
			background-color: #fff;
			margin-bottom: 10px;
			
		}
	#d2 ul li{
		height: 20px;
		margin-top: 10px;
	}
	#d2>ul>li>span:nth-child(1){
			
	}
	#d2>ul>li>span:nth-child(2){
		
	
	}
	.nav_body2>li:nth-child(1){
		margin-right: 5px;
		font-size: 20px;
	}
	.nav_body2>li:nth-child(2){
		font-size: 20px;
		text-align: center;
	}
	.nav_body2>li:nth-child(3){
		margin-left: 10px;
		height: 100px;
		font-size: 20px;
	}
	.nav_body2>li:nth-child(3) img{
		width: 100px;
		height:100px;
	}
	.nav_body2>li:nth-child(4){
		position: relative;
		top: -12px;
		margin-left: auto;
		width: 65%;
		font-size: 20px;
		z-index: 1;
	}
	.nav_body3{
		width: 100%;
		display: flex;
		flex-wrap: wrap;
		font-size: 12px;
		align-items: baseline;
	
	}

	.nav_body3>li{
		margin-left: 5px;
	}
	.nav_body3>li:nth-child(1){
		font-size:18px;
	}
	.nav_body3>li:nth-child(2){
		font-size: 16px;
		color: #5E5E5E;
		margin-left: 0;
	}
	.nav_body3_2{
		margin-top: 30px;
		display: flex;
		width: 100%;
		align-items: baseline;
	}
	.nav_body3_2>li{
		margin-left: 3px;
	}
	.nav_body3_2>li:nth-child(3){
		margin-left: 30px;
		margin-bottom: 10px;
	}
	/* 地下按钮 */
	.buttom{
		display: flex;
		position: fixed;
		bottom: 0;
		padding: 5px 10px;
		justify-content: center;
		z-index: 2;
	}

